Hexagonal Masyu #4

This is one where I was trying for the "artistic" side of making a puzzle... I marked 19 cells in the middle in some kind of a symmetric pattern for putting in circles. Surprisingly, it was kind of tough to even make a correct loop that passes through these cells, but eventually I managed to do it. I had to put 3 circles along the rim of the puzzle in order to make it easier (for me) and unique, hence breaking the symmetric look that I was going for...oops. Anyway, I would have liked to have more black circles in there, but alas, that doesn't work. So...after all that useless rambling, here is the puzzle...